14 BULLETIN 181, UNITED STATES NATIONAL MUSEUM 



FARCIMEN (FARCIMEN) WRIGHTI MARTIANUM, new subspecies 



Plate 2, Figures 10-12 



We have this race from Finca San Carlos, Marti, which is the type 

 locality, and also from El Zanjon de Sibanicii, and from San Antonio 

 Abad, Berrocal, and Giiaimaro, Camagiiey Province. This small sub- 

 species is unicolor orange, with white peristome and white umbilical 

 region. The peristome is exceedingly expanded and thickened except 

 at the parietal wall, where it is very narrow and exposes the umbilicus. 

 In general shape it resembles F. (F.) ivrighti hiayaense but is readily 

 distinguished from that by its smaller size and by having the inner lip 

 decidedly distinct from the preceding turn. 



The type, U.S.N.M. No. 535896, which was collected by Victor Kod- 

 riguez, has 5.3 whorls remaining and measures: Height, 19.3 mm.; 

 greater diameter, 11.0 mm. 



FARCIMEN (FARCIMEN) WRIGHTI NAJAZAENSE, new subspecies 

 Plate 2, Figubes 4-6 



The type of this subspecies comes from El Cacaotal de Sifontes, 

 Sierra de Najaza, Camagiiey Province. We have it also from the 

 Sierra del Cachimbo, which is between the Sierras del Chorrillo and 

 de Najaza, and from the Si'^rra de Guaicanamar, Palomar de San 

 Jose, between Guaicanamar and Najaza, and Verada del Telegrafo 

 in the Sierra del Chorrillo. 



This race resembles most nearly F. (F.) wrighti martianwn but is 

 easily distinguished from that by the fact that the peristome is de- 

 cidedly protracted anteriorly. 



The type, U.S.N.M. No. 535897, has 6.9 whorls remaining and meas- 

 ures : Height, 21.5 mm. ; greater diameter, 13.0 mm. 



FARCIMEN (FARCIMEN) BITUBERCULATUM (Sowerby) 



In this species the shell varies very much in size ; some of the races 

 are of medium stature, while others constitute the largest and most 

 ponderous shells in the genus. In shape they vary from elongate- 

 ovate to elongate-conic. In color also there is a great variation; 

 some races are uniformly pale, others conspicuously bicolor, that is, 

 the last whorl is purplish plum colored, while the early turns are 

 usually of a wax tint. In some races both unicolor and bicolor forms 

 are present. Peristome white with a yellowish tinge. The interior 

 of the aperture ranges from porcelain white to purplish brown but 

 is more or less constant for the different races. Nuclear whorls about 

 1.5, strongly rounded, smooth. The postnuclear whorls, while 

 rounded, vary materially in convexity in the different races. This is 

 emphasized by the amount of constriction presented by the suture. 



